No way she hit him on the head with a golf club. That would have caused some serious injuries, which would have been noted.
Here’s what I took from the initial reports, an account which has been totally lost to increased speculation:
Tiger and Elin had a fight in which she scratched up his face and probably pounded on him a bit.
He took off and jumped in the car (screaming something like, “Now you’ve ruined Thanksgiving!” — just a little funfact that made an impression on me).
Since he had taken a prescription pain pill earlier, and he was angry, he drove (DUI) erractically and had a least three collisions before coming to a stop.
The vehicle window may have been broken during one of the collisions or Elin may have been trying to hit the vehicle to get Tiger’s attention and get him to stop trying to drive off in the condition he was in.
Once stopped, he got out of the car, laid on the road and went to sleep. A neighbor reported Elin was sitting quietly by him, holding his hand, while Tiger was snoring.
When the cops arrived, Elin may have panicked and said she broke the vehicle window, etc., in an attempt to explain away Tiger’s DUI.
Elin did give two bottles of prescription drugs to the cops when they inquired about Tiger being under the influence.
This is a pretty typical “truth” for these type of situations.